<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <img th:src="@{'/static/'+${filename}}" width="300" height="300"/><br/>
    <a th:href="@{/download(filename=${filename})}">下载</a>
</body>
</html>